<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div @click="welcomeClick" class="home-welcome">
        <img src="~assets/manager.png" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '61px' : '200px'">
        <div class="toggle-button" @click="toggleCollpase">|||</div>
        <!-- 侧边栏菜单区域 -->
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF" :unique-opened="true" :collapse="isCollapse" :collapse-transition="false" :router="true"
                 :default-active="activePath">
          <!-- 一级菜单 -->
          <el-submenu :index="item.id + ''" v-for="item in menuList" :key="item.id">
            <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{ item.authName }}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index="'/' + sunItem.path" v-for="sunItem in item.children" :key="sunItem.id" @click="saveActivePath('/' + sunItem.path)">
              <template slot="title">
                <!-- 二级菜单的模板区域 -->
                <i class="el-icon-menu"></i>
                <!-- 图标 -->
                <span>{{ sunItem.authName }}</span>
                <!-- 文本 -->
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主题 -->
      <el-main>
        <!-- 路由占位符 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  name: 'Home',
  data () {
    return {
      // 左侧菜单数据
      menuList: [],
      iconsObj: {
        // 一级菜单的icon图标
        147: 'el-icon-magic-stick',
        125: 'iconfont icon-users',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false, // 是否折叠属性
      activePath: ''
      // welcome: {
      // authName: '欢迎使用',
      // id: 147,
      // order: 1,
      // path: '/welcome'
      // children: [
      //   {
      //     authName: '使用说明',
      //     id: 124,
      //     order: 1,
      //     path: 'welcome',
      //     children: []
      //   }
      // ]
      // }
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    welcomeClick () {
      // console.log(this.$route.path === '/welcome')
      this.activePath = ''
      if (this.$route.path !== '/welcome') {
        this.$router.push('/welcome')
      }
    },
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 获取所有的菜单
    async getMenuList () {
      const { data: res } = await this.$http.get('/menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.$message.success(res.meta.msg)
      // res.data.unshift(this.welcome)
      this.menuList = res.data
      console.log(res, 'menus')
    },
    // 点击按钮,切换菜单的折叠和展开
    toggleCollpase () {
      this.isCollapse = !this.isCollapse
    },
    saveActivePath (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
      // console.log(this.$route.path)
    }
  }
}
</script>

<style lang="less" scoped>
// .hWelcome {
//   color: #fff;
//   font-size: 15px;
//   height: 25px;
//   text-align: center;
//   background: green;
//   span {
//     margin-left: 10px;
//   }
// }
.home-container {
  height: 100%;
  .home-welcome {
    cursor: pointer;
  }

  .el-header {
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    background-color: #373d3f;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      img {
        width: 60px;
        height: 60px;
        border-radius: 50%;
      }
      span {
        margin-left: 15px;
      }
    }
  }
  .el-aside {
    background-color: #333744;
    .el-menu {
      border-right: none;
    }
  }
  .el-main {
    background-color: #eaedf1;
  }
  .iconfont {
    padding-right: 10px;
  }
  .toggle-button {
    background: #4a5064;
    font-size: 10px;
    text-align: center;
    line-height: 24px;
    color: #fff;
    letter-spacing: 0.2em;
    cursor: pointer;
  }
}
</style>
